<p>The Logitech HD Pro C920 <a href="https://www.lifewire.com/before-you-buy-a-webcam-2640480" data-component="link" data-source="inlineLink" data-type="internalLink" data-ordinal="1">webcam</a> has replaced the C910, and as replacements typically do, the new version brings with it a host of improvements. Here we&#39;ll break down the similarities and the differences.</p><ul><li>Both record in Full HD 1080p video (with 720p for video calling).</li><li>The C920 can take 15-megapixel stills, whereas the C910 took 10-megapixel stills.</li><li>Both have one-click uploading to <a href="https://www.lifewire.com/what-is-facebook-com-2654758" data-component="link" data-source="inlineLink" data-type="internalLink" data-ordinal="2">Facebook</a>.</li><li>Both have dual microphones.</li><li>The C920 is smaller and lighter. According to Amazon, the C920 measures 2.8 inches by 7.5 inches by 8.9 inches and weighs 7.7 ounces, while the C910 measures 3.8 inches by 1.2 inches by 1.3 inches and weighs 12 ounces.</li><li>The C920 features H.264 compression, which translates to faster and smoother HD video, Logitech says.</li><li>Both have autofocus, but the C920 builds on that with &#34;20-Step Autofocus.&#34;</li><li>The C920 has a tripod-ready base, which the CN910 does not.</li><li>The C910 could be used with a Mac, but the C920 is designed only for use with Windows computers.</li><li>Both have (or had) $99.99 suggested retail prices, although they could (and can) be found for much less expensive elsewhere. Since the C920 is still somewhat new (as of June 2012), this may be a little harder, and the C910 will naturally be less than the C920 at any retailer that sells both models.</li></ul><h3>Takeaway</h3>If you&#39;re going to be recording a whole lot of high-def video, the added benefits of the C920 just might be right up your alley. Otherwise, you can probably get away with the now-cheaper C910 and still have a heck of a webcam.